Variable support precast beam operation platform

Abstract

The utility model discloses a variable support type prefabricated beam operation platform in the technical field of bridge construction, including support device, ladder stand device and platform, the support structure includes bottom plate structure, the bottom plate structure upper end is provided with the lifting structure, the lifting end of lifting structure is connected platform, the bottom plate structure is provided with automatic telescopic part, the ladder stand device is established between automatic telescopic part and platform, the ladder stand device is provided with length adjusting structure, two ends of ladder stand device are hinged in automatic telescopic part and platform respectively, can guarantee platform to realize automatic lifting and adjust height, and through automatic telescopic part and length adjusting mechanism, realize the length and inclination angle control of ladder stand structure when adjusting height, guarantee after adjusting platform to reasonable height, simultaneously, ladder stand device is also in more reasonable inclination angle, prevent height excessively high structure instability or ladder stand structure too steep and is not conducive to activity.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a variable support precast beam operating platform. Background Technology

[0002] In the field of bridge precast beam construction, during traditional construction operations, construction workers or inspectors stand directly on the formwork or reinforcing bars. This can damage and contaminate the beam, and the limited range of movement while standing on the formwork and reinforcing bars makes construction inconvenient and poses safety hazards, failing to meet the requirements of standardized construction.

[0003] Patent document CN210589859U discloses a movable precast beam concrete placement platform, the structure of which includes a support frame, a ladder, and an operating platform. The support frame includes two trapezoidal supports set on both sides of the precast beam. Each trapezoidal support has right-angled trapezoidal frames at both ends along the longitudinal direction of the precast beam. The side of the trapezoidal support facing the precast beam is vertical, and the side facing away from the precast beam is inclined. Each trapezoidal support has four wheels at the bottom. In other words, the construction platform structure of the above technical solution is of fixed height, which is not convenient for freely raising and lowering the work platform and adjusting the inclination of the ladder. As a result, when height adjustment is required, manual disassembly and adjustment are required, which is inefficient. Moreover, the inclination of the ladder changes after adjustment, and it is impossible to guarantee an optimal ladder inclination angle. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to improve the low efficiency of height adjustment of the existing precast beam construction platform and the difficulty in controlling the inclination of the ladder.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A variable-support precast beam operating platform includes a support device, a ladder device, and a platform. The support device includes a base plate structure, and a lifting structure is provided at the upper end of the base plate structure. The lifting end of the lifting structure is connected to the platform. The base plate structure is provided with an automatic telescopic component. The ladder device is provided between the automatic telescopic component and the platform. The ladder device is provided with a length adjustment structure. The two ends of the ladder device are respectively hinged to the automatic telescopic component and the platform.

[0006] Furthermore, one of the aforementioned support devices and one of the aforementioned climbing devices constitute a structural unit, and one structural unit is provided at each of any two opposite sides of the aforementioned platform.

[0007] Furthermore, the aforementioned lifting structure includes a hydraulic lifting rod vertically mounted on the aforementioned base plate structure, with the lifting end of the hydraulic lifting rod connected to the bottom end of the aforementioned platform.

[0008] Furthermore, the aforementioned base plate structure includes a fixed plate, the aforementioned automatic telescopic component includes a movable plate, the aforementioned lifting structure is disposed on the aforementioned fixed plate, and the lower end of the aforementioned climbing device is hinged to the end of the aforementioned movable plate away from the aforementioned fixed plate; the aforementioned fixed plate and the aforementioned movable plate are directionally slidingly engaged, and the sliding direction is in the same vertical plane as the rotation direction of the aforementioned climbing device; a first locking structure is provided between the aforementioned fixed plate and the aforementioned movable plate.

[0009] Furthermore, the fixed plate has a hollow interlayer at its side away from the lifting structure, and the movable plate is slidably disposed in the hollow interlayer at its end near the fixed plate, and the width and thickness of the movable plate are adapted to the width and thickness of the hollow interlayer.

[0010] Furthermore, the aforementioned ladder device includes a first ladder and a second ladder connected to each other. The upper end of the first ladder is hinged to the platform, and the lower end of the second ladder is hinged to the automatic telescopic member. The first ladder and the second ladder are slidably connected to each other, and a second locking structure is provided at the connection between the first ladder and the second ladder.

[0011] Furthermore, the first ladder is provided with a guide groove along its length, and the second ladder is provided with a guide block, with the guide block and the guide groove engaging in a directional sliding fit.

[0012] Furthermore, both the first ladder and the second ladder mentioned above include a support frame and a plurality of pedals evenly spaced on the support frame, and the pedals and the support frame are connected by an elastic pin structure.

[0013] Furthermore, multiple movable wheel structures are evenly arranged at the bottom end of the aforementioned base plate structure. The movable wheel structure includes roller components and lifting shafts. The lifting shafts are used to lift the roller components off the ground by contacting the ground through lifting action after the equipment reaches the designated position.

[0014] Furthermore, both the platform and the ladder device are equipped with perforated guardrails.

[0015] The beneficial effects of this utility model are: By setting a lifting structure in the base plate structure, the platform can be automatically raised and lowered to adjust its height. At the same time, the length and tilt angle of the ladder structure can be controlled by automatic telescopic components and length adjustment mechanism. This ensures that after the platform is adjusted to a reasonable height, the ladder device is also at a reasonable tilt angle, preventing the structure from being unstable due to excessive height or the ladder structure being too steep, which would be detrimental to activity. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the support device structure of this utility model; Figure 3 This is a schematic diagram of the ladder climbing device of this utility model; Figure 4 This is a schematic diagram of the movable wheel structure of this utility model; The diagram is labeled as follows: 1-Support device, 11-Lifting structure, 111-Cylinder, 112-Piston rod, 12-Base plate structure, 121-Fixed plate, 1211-Hollow sandwich layer, 122-Moving plate, 13-Moving wheel structure, 131-Steering and lifting structure, 1311-Steering shaft, 1312-Lifting shaft, 132-Rolling wheel, 14-Second positioning shaft, 2-Climbing ladder device, 21-Second climbing ladder, 211-Second rotating hole, 22-First climbing ladder, 221-First rotating hole, 222-Guide groove, 223-Pin hole, 23-First pedal, 24-Second pedal, 241-Elastic pin, 25-First guardrail, 26-Second guardrail, 3-Platform, 31-Top plate, 32-Guardrail, 321-Reinforcing rod, 322-Support rod, 33-Limiting rod. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 As shown in the figure, this application proposes a variable support type precast beam operating platform, including a support device 1, a climbing ladder device 2, and a platform 3. The support device 1 includes a base plate structure 12, and a lifting structure 11 is provided at the upper end of the base plate structure 12. The lifting end of the lifting structure 11 is connected to the platform 3. The base plate structure 12 is provided with an automatic telescopic component. The climbing ladder device 2 is provided between the automatic telescopic component and the platform 3. The climbing ladder device 2 is provided with a length adjustment structure. The two ends of the climbing ladder device 2 are respectively hinged to the automatic telescopic component and the platform 3.

[0019] First of all, it should be stated that by setting the lifting structure 11 on the base plate structure 12, the platform 3 can be automatically raised and lowered to adjust its height. At the same time as adjusting the height, the length and tilt angle of the ladder structure can be controlled by the automatic telescopic component and the length adjustment mechanism, so as to ensure that after the platform 3 is adjusted to a reasonable height, the ladder device 2 is also at a reasonable and comfortable tilt angle.

[0020] The aforementioned automatic telescopic components can be telescopic components driven by electric telescopic rods or pneumatic telescopic structures, with the telescopic state adaptively adjusted in real time according to the lifting state. They can also be mechanical telescopic structures. The length adjustment structure of the climbing device 2 can also be electric or pneumatic, or it can be manual mechanical adjustment.

[0021] To ensure structural stability and facilitate the construction of precast beams on both sides, one of the aforementioned support devices 1 and one of the aforementioned ladder devices 2 form a structural unit. A structural unit is set at each of the two opposite sides of the aforementioned platform 3. The two structural units stacked on both sides of the platform 3 make the overall structural support stability higher.

[0022] like Figure 2 As shown, the lifting structure 11 can be lifted by a motor via an electric push rod or by a pneumatic push rod. However, to ensure lifting stability and load-bearing capacity, the lifting structure 11 includes a hydraulic lifting rod vertically mounted on the base plate structure 12. The lifting end of the hydraulic lifting rod is connected to the bottom of the platform 3. Specifically, the hydraulic lifting rod includes a hydraulic cylinder and a piston rod 112. The piston rod 112 is stably lifted and lowered within the hydraulic cylinder by an external hydraulic drive system. Furthermore, multiple hydraulic lifting rods that can be lifted and lowered synchronously can be evenly spaced on the base plate structure 12, which can further improve lifting stability.

[0023] For the base plate structure 12, the base plate structure 12 includes a fixed plate 121, the automatic telescopic component includes a movable plate 122, the lifting structure 11 is disposed on the fixed plate 121, and the lower end of the climbing device 2 is hinged to the end of the movable plate 122 away from the fixed plate 121; the fixed plate 121 and the movable plate 122 are directionally slidingly engaged, and the sliding direction is in the same vertical plane as the rotation direction of the climbing device 2; a first locking structure is provided between the fixed plate 121 and the movable plate 122; the first locking structure can be a bolt fastening mechanism or a pin locking mechanism; that is, the fixed plate 121 and the movable plate 122 are engaged by relatively directional sliding. To achieve the positional change of the bottom end of the climbing ladder device 2, the sliding engagement of the fixed plate 121 and the moving plate 122 can be a directional engagement structure of a slider and a groove. In this embodiment, in order to reduce the size of the equipment and simplify the structure, the side end of the fixed plate 121 away from the lifting structure 11 is provided with a hollow interlayer 1211, and the end of the moving plate 122 near the fixed plate 121 is slidably disposed in the hollow interlayer 1211, and the width and thickness of the moving plate 122 are adapted to the width and thickness of the hollow interlayer 1211. By pulling the moving plate 122 outward from the hollow interlayer 1211, the bottom plate structure 12 is extended as a whole, so that the bottom end of the climbing ladder device 2 gradually moves away from the fixed plate 121.

[0024] like Figure 3As shown, the climbing device 2 includes a first climbing ladder 22 and a second climbing ladder 21 connected to each other. The upper end of the first climbing ladder 22 is hinged to the platform 3, and the lower end of the second climbing ladder 21 is hinged to the automatic telescopic component. The first climbing ladder 22 and the second climbing ladder 21 are slidably connected to each other, and a second locking structure is provided at the connection between the first climbing ladder 22 and the second climbing ladder 21. That is, when the lifting structure 11 drives the platform 3 to rise and fall, the first climbing ladder 22 and the second climbing ladder 21 slide relative to each other to a suitable position under the action of force, so as to ensure the stability of the lifting.

[0025] The first ladder 22 is provided with a first hinge mechanism at its upper end. The first hinge mechanism includes a first positioning shaft disposed on the platform 3 and a first rotating hole 221 disposed on the upper end of the first ladder 22, which ensures a stable relative rotation state between the upper end of the first ladder 22 and the platform 3. The lower end of the second ladder 21 and the moving plate 122 are provided with a second hinge mechanism. The second hinge mechanism includes a second rotating hole 211 and a second positioning shaft 14, which achieve relative rotation through the cooperation of the rotating hole and the positioning shaft.

[0026] Specifically, the first ladder 22 is provided with a guide groove 222 along its length, and the second ladder 21 is provided with a guide block. The guide block and the guide groove 222 are directionally slidably engaged, and the guide groove 222 and the guide block cannot be disengaged through directional sliding. The stability of the sliding engagement is ensured through the sliding engagement of the guide groove 222 and the guide block.

[0027] The first ladder 22 includes a first support frame and a plurality of first steps 23 evenly spaced on the first support frame. The second ladder 21 includes a second support frame and a plurality of second steps 24 evenly spaced on the second support frame. The steps and the support frame are connected by a resilient pin 241 structure, specifically including a resilient pin 241 at the end of the step and a pin hole 223 in the support frame; this facilitates the disassembly and assembly of the steps and equipment maintenance. First guardrails 25 are provided on both sides of the first ladder 22 along its extension direction, and second guardrails 26 are provided on both sides of the second ladder 21 along its extension direction.

[0028] like Figure 1 , Figure 4As shown, multiple movable wheel structures 13 are evenly arranged at the bottom end of the aforementioned base plate structure 12. Each movable wheel structure 13 includes a steering and lifting mechanism and rolling wheels 132. The lifting shaft is used to raise the rollers off the ground after the equipment reaches a designated position, by lifting them against the ground. Specifically, the movable wheel structure 13 includes a steering and lifting structure 131 and rolling wheels 132. The steering and lifting structure 131 is divided into a steering shaft 1311 and a lifting shaft 1312. The steering shaft 1311 is embedded in the base plate structure 12, and its gear structure controls the rotation of the rolling wheels 132, while its lower shaft controls the rolling of the rolling wheels 132. When it is necessary to fix the position of the operating platform, the lifting shaft 1312 can be lowered to the ground, suspending the steering shaft 1311 and rolling wheels 132, thus improving the stability of the device during operation.

[0029] The platform 3 is equipped with perforated guardrails 32 on all sides. Specifically, the platform 3 includes a top plate 31, guardrails 32, and limiting holes. The lower end of the top plate 31 is fixedly connected to the top of the lifting structure 11. The top plate 31 serves as the operating platform for construction workers and can reach a designated height with the lifting structure 11. The guardrails 32 are fixedly installed on the upper part of the top plate 31. The guardrails 32 consist of reinforcing rods 321 as the main load-bearing members at the edges and secondary load-bearing members 322 arranged alternately in the middle. The middle section of the 322 has a large gap, which is perforated, to provide an operating opening during construction operations.

[0030] In summary, this utility model proposes a variable support precast beam operating platform that can quickly adapt to different types of precast beams. It is easy to operate; only the hydraulic cylinder needs to be controlled to move the platform 3 to the designated position, and the rest of the structure will automatically adjust to keep the operating platform stable. Construction workers can also stand directly on the platform 3 to make adjustments without having to climb up and down ladders for each adjustment. This helps to improve construction efficiency, increases the operating space to make construction work more convenient, and reduces safety hazards.

Claims

1. A variable-support precast beam operating platform, comprising a support device (1), a ladder device (2), and a platform (3), characterized in that, The support device (1) includes a base plate structure (12), and a lifting structure (11) is provided on the upper end of the base plate structure (12). The lifting end of the lifting structure (11) is connected to the platform (3). The base plate structure (12) is provided with an automatic telescopic component. The climbing device (2) is provided between the automatic telescopic component and the platform (3). The climbing device (2) is provided with a length adjustment structure. The two ends of the climbing device (2) are respectively hinged to the automatic telescopic component and the platform (3).

2. The variable-support precast beam operating platform according to claim 1, characterized in that, A support device (1) and a ladder device (2) constitute a structural unit, and a structural unit is provided at each of the two opposite sides of the platform (3).

3. The variable-support precast beam operating platform according to claim 1, characterized in that, The lifting structure (11) includes a hydraulic lifting rod that is vertically mounted on the base plate structure (12), and the lifting end of the hydraulic lifting rod is connected to the bottom end of the platform (3).

4. The variable-support precast beam operating platform according to claim 1, characterized in that, The base plate structure (12) includes a fixed plate (121), the automatic telescopic component includes a movable plate (122), the lifting structure (11) is disposed on the fixed plate (121), and the lower end of the climbing device (2) is hinged to the end of the movable plate (122) away from the fixed plate (121); the fixed plate (121) and the movable plate (122) are directionally slidingly engaged, and the sliding direction is in the same vertical plane as the rotation direction of the climbing device (2); a first locking structure is provided between the fixed plate (121) and the movable plate (122).

5. The variable-support precast beam operating platform according to claim 4, characterized in that, The fixed plate (121) has a hollow interlayer (1211) on its side away from the lifting structure (11). The movable plate (122) is slidably disposed in the hollow interlayer (1211) at one end close to the fixed plate (121), and the width and thickness of the movable plate (122) are adapted to the width and thickness of the hollow interlayer (1211).

6. The variable-support precast beam operating platform according to claim 1, characterized in that, The climbing device (2) includes a first climbing ladder (22) and a second climbing ladder (21) connected to each other. The upper end of the first climbing ladder (22) is hinged to the platform (3), and the lower end of the second climbing ladder (21) is hinged to the automatic telescopic component. The first climbing ladder (22) and the second climbing ladder (21) are slidably connected to each other, and the connection between the first climbing ladder (22) and the second climbing ladder (21) is provided with a second locking structure.

7. The variable-support precast beam operating platform according to claim 6, characterized in that, The first ladder (22) is provided with a guide groove (222) along its length, and the second ladder (21) is provided with a guide block. The guide block and the guide groove (222) are directionally slidably engaged.

8. The variable-support precast beam operating platform according to claim 6, characterized in that, Both the first ladder (22) and the second ladder (21) include a support frame and a plurality of pedals evenly spaced on the support frame. The pedals and the support frame are connected by an elastic pin (241) structure.

9. The variable-support precast beam operating platform according to claim 1, characterized in that, The bottom plate structure (12) is uniformly provided with multiple moving wheel structures (13). The moving wheel structure (13) includes roller components and lifting shafts. The lifting shafts are used to lift the roller components off the ground by lifting them after the equipment reaches the designated position.

10. The variable-support precast beam operating platform according to claim 1, characterized in that, Both the platform (3) and the climbing ladder device (2) are provided with perforated guardrails (32) around their perimeter.

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