Ultra-light and ultra-thin overbridge structure

Abstract

The utility model discloses an ultra-light and ultra-thin overbridge structure, which belongs to the technical field of overbridges and comprises a main beam, a support plate and two handrails are mounted on the main beam, a reinforcing device for meeting corresponding strength and deformation requirements is fixedly connected below the main beam, a tensioning device for tightening and loosening pretension is fixedly connected below the reinforcing device, and the two handrails are fixedly connected below the reinforcing device. One side of the tensioning device is fixedly connected with a self-locking device used for adjusting and locking the reinforcing device. According to the utility model, by adopting the main beam with the thickness of 150mm and a prestress tension structure formed by combining the X-shaped inhaul cable and the pressing rod, the lightweight design is realized, the dead weight of the main beam is reduced, and meanwhile, the inhaul cable after pretension is applied effectively shares load, so that the bearing capacity and the stability of the structure are improved, good deformation control is ensured, and the service life of the structure is prolonged. The simple structural form not only meets the strength requirement, but also improves the aesthetic property.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of overbridge, especially relates to a super light and thin overbridge structure. BACKGROUND

[0002] The overbridge is a channel connecting the light pavilion and the main structure, adopts the simple modern design, and is stable and light in structure, ensures the smooth connection between the both. It not only satisfies the functional demand, also and the surrounding environment and the architectural style are in harmony and blend.

[0003] In the actual implementation process, in the prior art, the traditional footbridge design usually adopts thick main beam and heavy structural material, which leads to the overall structure weight is big, has increased the construction difficulty and the cost, simultaneously, the bearing capacity and the deformation control of conventional design, possibly need to adopt the complex support system or increase more structural components, lead to the overall structure is more cumbersome, influence the aesthetic and space utilization.

[0004] Based on this, the utility model discloses a super light and thin overbridge structure to solve the above -mentioned problem. SUMMARY

[0005] The utility model discloses a super light and thin overbridge structure to solve the above -mentioned problem.

[0006] In order to realize the above -mentioned purpose, the utility model discloses a technical scheme as follows:

[0007] A super light and thin overbridge structure, including main beam, install support plate and two handrails on the main beam, the main beam is fixedly connected with the reinforcing device for satisfying the strength and deformation requirement, the reinforcing device is fixedly connected with the tensioning device for the pre -tensioning tightness below, the tensioning device one side fixedly connected with the self -locking device for reinforcing device adjustment locking.

[0008] Further describe the above technical scheme as follows:

[0009] The reinforcing device includes four fixed seats and connecting lug plate, and two adjacent fixed seats are symmetrically arranged below the main beam, the fixed seat is penetrated with fixed shaft, the first rotary plate is rotatably connected outside the fixed shaft, two inhaul cables are movably connected in the first rotary plate, one end of two inhaul cables is fixedly connected with the same second rotary plate, two limiting shafts are penetrated and connected in the connecting lug plate, and two adjacent second rotary plates are rotatably connected outside the limiting shaft.

[0010] As a further description of the above technical solutions:

[0011] The connecting lug plate is fixedly connected with a pressing rod, and the pressing rod is fixedly connected below the main beam.

[0012] As a further description of the above technical solutions:

[0013] The shape of the plurality of cables is X-shaped, and the cables and the pressing rod combine to form a prestressed tension structure.

[0014] As a further description of the above technical solutions:

[0015] The tensioning device comprises four frame bodies and four hooks, the frame body is fixedly connected with a mounting plate, the mounting plate is fixedly connected below the corresponding fixed seat, the frame body is rotatably connected with a rotating rod, and the rotating rod is connected with a winding rod.

[0016] As a further description of the above technical solutions:

[0017] The cable is slidingly connected in the frame body, and the hook is fixedly connected below the two cables.

[0018] As a further description of the above technical solutions:

[0019] The rotating rod is provided with a plurality of stress holes for adjustment.

[0020] As a further description of the above technical solutions:

[0021] The self-locking device comprises a positioning shaft and a ratchet wheel, the positioning shaft is fixedly connected to one side of the frame body, the positioning shaft is rotatably connected with a pawl outside, the ratchet wheel is fixedly connected to one side of the rotating rod, and the pawl is clamped outside the ratchet wheel.

[0022] As described above, due to the adoption of the above technical solutions, the beneficial effects of the present application are:

[0023] 1、In the utility model, through adopting 150mm thick main beam and X type cable and pressing rod combined prestressed tension structure, realize light weight design, reduce main beam dead weight, simultaneously, cable after exerting pre-tension effectively share load, improve structure's carrying capacity and stability, ensure good deformation control, simple structure form not only satisfy strength requirement, still promote the aesthetic appearance.

[0024] 2. The utility model discloses when needing to adjust the tension of the cable, the operator makes it rotate through rotating the rotating rod, and further drives the winding rod to rotate, after the winding rod rotates a round, through the pull of the hook, makes the hook produce the tension, and further tightens the cable, the operator continues to rotate the rotating rod, until the cable reaches the target prestress, at this moment, stop rotating the rotating rod, and the ratchet and the ratchet wheel are arranged, prevent the rotating rod from reversing, thereby realize the tension adjustment of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model proposes a kind of super light thin sky bridge structure three-dimensional structure schematic diagram.

[0026] Figure 2 The utility model proposes a kind of super light thin sky bridge structure reinforcing device three-dimensional structure schematic diagram.

[0027] Figure 3 The utility model proposes a kind of super light thin sky bridge structure Figure 2 The structure schematic diagram of enlarged A portion in.

[0028] Figure 4 The utility model proposes a kind of super light thin sky bridge structure tensioning device three-dimensional structure schematic diagram.

[0029] Legend: 1, main beam;2, support plate;3, handrail;4, reinforcing device;41, fixed seat;42, fixed shaft;43, first rotating plate;44, cable;45, second rotating plate;46, connecting lug plate;47, limiting shaft;5, compression rod;6, tensioning device;61, frame;62, mounting plate;63, rotating rod;64, winding rod;65, hook;7, self-locking device;71, positioning shaft;72, ratchet;73, ratchet wheel. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model. EMBODIMENT

[0031] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of super light thin bridge structure, including main girder 1, by being provided with main girder 1, main girder 1 adopts 150mm thick steel structure box;Two handrails 3 are installed on main girder 1 with support plate 2, and main girder 1 is fixedly connected with reinforcing device 4 for satisfying corresponding strength and deformation requirement below, and reinforcing device 4 is fixedly connected with tensioning device 6 for the pre-tension tightness below, and one side of tensioning device 6 is fixedly connected with self-locking device 7 for the adjustment locking of reinforcing device 4.

[0032] Specifically, as shown in Figures 1-3 Reinforcing device 4 includes four fixed seats 41 and connecting lug plate 46, and two adjacent fixed seats 41 are symmetrically arranged below main girder 1, fixed shaft 42 is connected in the fixed seat 41, first rotating plate 43 is rotatably connected outside fixed shaft 42, two cables 44 are movably connected in first rotating plate 43, by being provided with first rotating plate 43 and cable 44, cable 44 can freely slide in first rotating plate 43;By being provided with cable 44, cable 44 is 30mm diameter high-strength stainless steel cable 44, after a certain pre-tension is applied to cable 44, main girder 1 can satisfy corresponding strength and deformation requirement;One second rotating plate 45 is fixedly connected to the end of two cables 44, two limit shafts 47 are connected in connecting lug plate 46, two adjacent second rotating plates 45 are rotatably connected outside limit shaft 47, by being provided with second rotating plate 45 and limit shaft 47, second rotating plate 45 can freely rotate outside limit shaft 47, and will not be separated;Press bar 5 is fixedly connected on connecting lug plate 46, press bar 5 is fixedly connected below main girder 1, the shape of a plurality of cables 44 forms X type, and forms prestressed tension structure with press bar 5.

[0033] In work, by adopting 150mm thick main girder 1 and X type cable 44 and press bar 5 combined prestressed tension structure, lightweight design is realized, and the self weight of main girder 1 is reduced, simultaneously, cable 44 effectively shares load after pre-tension is applied, improves the carrying capacity and stability of structure, ensures good deformation control, and simple structure form not only satisfies strength requirement, but also improves aesthetic property. Embodiment

[0034] Specifically, as shown in Figure 4As shown, the tensioning device 6 includes four frame bodies 61 and four hooks 65, the frame body 61 is fixedly connected with a mounting plate 62, the mounting plate 62 is fixedly connected below the corresponding fixed seat 41, the frame body 61 is rotatably connected with a rotating rod 63, the rotating rod 63 is connected with a winding rod 64, the cable 44 is slidably connected in the frame body 61, the hook 65 is fixedly connected below the two cables 44, the rotating rod 63 is provided with a plurality of stress holes for adjusting, by setting the stress hole, the operator can insert the adjusting rod, and the rotating rod 63 can be easily adjusted by the lever principle; the self-locking device 7 includes a positioning shaft 71 and a ratchet wheel 73, the positioning shaft 71 is fixedly connected on one side of the frame body 61, the positioning shaft 71 is rotatably connected with a pawl 72 outside, and the ratchet wheel 73 is fixedly connected on one side of the rotating rod 63.

[0035] In work, when the tension of the cable 44 needs to be adjusted, the operator rotates the rotating rod 63 to drive the winding rod 64 to rotate, after the winding rod 64 rotates one circle, the hook 65 is pulled to generate tension, and then the cable 44 is tensioned, the operator continues to rotate the rotating rod 63 until the cable 44 reaches the target prestress, at this time, the rotating rod 63 is stopped, the pawl 72 is clamped with the ratchet wheel 73, and the rotating rod 63 is prevented from being reversed, so that the tension of the cable 44 is adjusted.

[0036] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An ultra-light and thin bridge structure comprising a main beam (1), characterized in that, The main beam (1) is provided with a support plate (2) and two handrails (3), and is fixedly connected with a reinforcing device (4) at the lower side for meeting the strength and deformation requirements, and is fixedly connected with a tensioning device (6) at the lower side of the reinforcing device (4) for tensioning the pretension, and is fixedly connected with a self-locking device (7) at one side of the tensioning device (6) for adjusting and locking the reinforcing device (4).

2. The ultra-light and thin bridge structure according to claim 1, wherein, The reinforcing device (4) comprises four fixing seats (41) and a connecting lug plate (46), two adjacent fixing seats (41) are symmetrically arranged at the lower side of the main beam (1), a fixing shaft (42) is penetratingly connected in the fixing seat (41), a first rotating plate (43) is rotatably connected outside the fixing shaft (42), two tension cables (44) are movably connected in the first rotating plate (43), one end of the two tension cables (44) is fixedly connected with a same second rotating plate (45), two limiting shafts (47) are penetratingly connected in the connecting lug plate (46), and two adjacent second rotating plates (45) are rotatably connected outside the limiting shafts (47).

3. The ultra-light and thin bridge structure according to claim 2, wherein, The connecting lug plate (46) is fixedly connected with a pressing rod (5), and the pressing rod (5) is fixedly connected at the lower side of the main beam (1).

4. The ultra-light and thin bridge structure according to claim 2, wherein, The shapes of the several tension cables (44) form an X shape, and the tension cables (44) and the pressing rod (5) form a prestressed tension structure.

5. The ultra-lightweight and thin bridge structure according to claim 2, wherein, The tensioning device (6) comprises four frame bodies (61) and four hooks (65), the frame body (61) is fixedly connected with a mounting plate (62), the mounting plate (62) is fixedly connected at the lower side of the corresponding fixing seat (41), a rotating rod (63) is rotatably connected in the frame body (61), and a winding rod (64) is penetratingly connected in the rotating rod (63).

6. The ultra-lightweight and thin bridge structure according to claim 5, wherein, The tension cable (44) is slidingly connected in the frame body (61), and the hook (65) is fixedly connected at the lower side of the two tension cables (44).

7. The ultra-lightweight and thin bridge structure according to claim 6, wherein, A plurality of stress adjustment holes are formed in the rotating rod (63).

8. The ultra-lightweight and thin bridge structure according to claim 7, wherein, The self-locking device (7) comprises a positioning shaft (71) and a ratchet wheel (73), the positioning shaft (71) is fixedly connected at one side of the frame body (61), a pawl (72) is rotatably connected outside the positioning shaft (71), the ratchet wheel (73) is fixedly connected at one side of the rotating rod (63), and the pawl (72) is clamped outside the ratchet wheel (73).

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