Bridge fastening structure

Abstract

The utility model discloses a bridge fastening structure which is characterized in that a gap exists between adjacent guard plates, the two ends of the adjacent guard plates along the plate length are fixedly connected with each other, and an area capable of containing a prefabricated part is formed; the turntable is rotationally connected with the protective plate; one end of the turntable extends into a plate cavity of the protective plate; the rope is slidably arranged in a plate cavity of the protection plate and penetrates through the end, close to the protection plate, of the rotary disc. The lifting piece is fixedly arranged on the table top of the base table, and the output end of the lifting piece abuts against the bottom of the protection plate and can be close to or away from the table top of the base table. A worker enables a rope to penetrate through the protective plate and the rotating disc and then closes the two ends of the rope, and a closed ring-shaped structure is formed. One end of the rotating disc extends into a plate cavity of the protection plate, then the rotating disc is rotated, the rope can be wound on the rotating disc, the restraining area of the rope is enlarged or reduced, the protection plate and the prefabricated pier are mutually clamped, and the vertical angle between the prefabricated pier and the ground is restrained while the prefabricated pier is clamped by the protection plate. And the labor intensity of workers is reduced while stable clamping and righting of the prefabricated pier are ensured.

Description

Technical Field

[0001] This application relates to the technical field of bridge construction, and particularly to a bridge fastening structure. Background Art

[0002] With the development and progress of the country, the infrastructure construction such as highways and railways has been increasing continuously. In the bridge construction by the cast-in-situ method with large-span brackets, a crane is usually used to lift a precast pier and transport it above the pier cap. When the precast pier is in a static state, the precast pier is placed into the pier cap, and then the subsequent bridge erection operation of the precast pier is carried out. However, when the precast pier is placed in the pier cap, it cannot be in the same axis.

[0003] In the prior art, a scaffold and a semi-circular flange are usually used to clamp and correct the precast pier. However, the installation of the hoop, the locking and disassembly of the bolts, and the setting of the scaffold usually require at least two construction workers to set them together. In the case of a large bridge drop and span, the hoop is heavy, and the workers need to work suspended in the air, which is difficult to construct, and major accidents occur frequently. Although safety ropes can be worn for protection, the suspended work will be affected by the environmental factors and weather factors at the construction site, which will affect the construction progress and increase the construction cost.

[0004] Therefore, there is an urgent need for a bridge fastening structure to solve the above problems. Utility Model Content

[0005] The embodiment of this application provides a bridge fastening structure, aiming to stably clamp and straighten the precast pier while reducing manpower and material resources.

[0006] To achieve the above object, the embodiment of this application provides the following technical solutions: A bridge fastening structure includes a base, a guard plate, a turntable, a rope, and a lifting member; the base is horizontally arranged on the ground, and a plurality of guard plates are arranged above the base; there is a gap between adjacent guard plates, and the two ends of adjacent guard plates along the plate length are fixedly connected to each other and form an area capable of placing precast members; the turntable is arranged outside the guard plate and is rotatably connected to the guard plate, and one end of the turntable extends into the plate cavity of the guard plate; the rope is slidably arranged in the plate cavity of the guard plate; the rope passes through one end of the turntable close to the guard plate and can limit the size of the gap; the lifting member is fixedly arranged on the tabletop of the base, and the output end of the lifting member abuts against the bottom of the guard plate and can approach or move away from the tabletop of the base.

[0007] Further, a light hole runs through the inside of the guard plate along the length direction, and the inner wall of the light hole is slidably connected to the peripheral surface of the rope.

[0008] Further, the turntable includes a turning handle and a turning rod;

[0009] The turning handle is arranged outside the guard plate and is rotatably connected to the guard plate;

[0010] One end of the rotating rod is fixedly connected to the side surface of the rotating handle close to the guard plate and forms an integral structure with the rotating handle. The other end of the rotating rod extends into the light hole and is slidably connected to the rope.

[0011] Further, a through hole is formed in one end of the rotating rod close to the light hole along the length direction of the light hole, and the inner wall of the through hole is slidably connected to the rope.

[0012] Further, the aperture of the light hole is much larger than that of the through hole, and the aperture of the through hole is larger than the diameter of the rope.

[0013] Further, a limiting hole is formed in the connection part of the guard plate and the rotating handle along the plate thickness direction. A limiting block extends radially on the rod body of the rotating rod, and the peripheral surface of the limiting block fits with the inner wall of the limiting hole, which can limit and restrain the relative rotation of the rotating handle and the guard plate.

[0014] Further, the edge of the light hole is rounded, and the connection part between adjacent light holes is connected smoothly in an arc shape.

[0015] Further, a plurality of lifting members are provided, and the output ends of the plurality of lifting members abut against the bottom end face of the guard plate.

[0016] Further, the feeding rates of the output ends of the respective lifting members are always at the same frequency.

[0017] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0018] The rope in this application is an open-ended steel wire rope at both ends. After the staff passes the rope through the guard plate and the turntable, the two ends of the rope can be closed by welding and / or knotting to form a closed loop structure. One end of the turntable extends into the plate cavity of the guard plate. The staff can rotate the turntable to wind the rope around the turntable, expand or shrink the constraint area of the rope, clamp the guard plate and the precast pier together. While the guard plate clamps the precast pier, it restricts the vertical angle between the precast pier and the ground, ensuring the stable clamping and straightening of the precast pier while reducing the labor intensity of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for describing the embodiments of the present invention or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram in the assembled state provided by the embodiments of this application;

[0021] Figure 2 Structural schematic diagram of the guard plate provided by the embodiment of the present application;

[0022] Figure 3 Structural schematic diagram of the turntable provided by the embodiment of the present application;

[0023] Figure 4 Cross-sectional view of the cooperation between the turntable and the guard plate provided by the embodiment of the present application.

[0024] Icon: 1 - prefabricated part; 2 - base; 10 - guard plate; 11 - light hole; 12 - limit hole; 20 - rope; 30 - turntable; 31 - turning handle; 32 - turning rod; 321 - through hole; 322 - limit block; 40 - lifting part. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. The terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0027] Combined with Figures 1-4As shown in the figure, a bridge fastening structure includes a base 2, a guard plate 10, a turntable 30, a rope 20, and a lifting member 40. The base 2 is horizontally arranged on the ground, and multiple guard plates 10 are arranged above the base 2. There are gaps between adjacent guard plates 10. The two ends of adjacent guard plates 10 along the plate length are fixedly connected to each other, and a region capable of placing precast members 1 is formed. The turntable 30 is arranged outside the guard plate 10 and is rotatably connected to the guard plate 10. One end of the turntable 30 extends into the cavity of the guard plate 10. The rope 20 is slidably arranged in the cavity of the guard plate 10. The rope 20 passes through one end of the turntable 30 close to the cavity of the guard plate 10 and can limit the size of the gap. The lifting member 40 is fixedly arranged on the tabletop of the base 2, and the output end of the lifting member 40 abuts against the bottom of the guard plate 10 and can approach or move away from the tabletop of the base 2.

[0028] The bridge fastening structure in this application can not only be used for the clamping and straightening operation of precast bridge piers, but also be applied to the clamping and calibration operation scenarios during the installation of large-volume columns. It is composed of a base 2, a guard plate 10, a turntable 30, a rope 20, and a lifting member 40. The base 2 can not only be used as the installation platform for precast bridge piers, but also as the bearing platform for the lifting member 40. During the installation operation of precast bridge piers, the guard plate 10 is arranged around the bottom and middle of the precast bridge pier and is supported by the output end of the lifting member 40. The cavity inside the guard plate 10 is used to arrange the rope 20. The rope 20 can use a steel wire rope with both ends open. After passing through the guard plate 10 and the turntable 30, the two ends of the rope 20 can be closed by welding and / or knotting to form a closed loop structure. One end of the turntable 30 extends into the cavity of the guard plate 10. Rotating the turntable 30 can wind the rope 20 around the turntable 30, expand or shrink the restraint area of the rope 20, clamp the guard plate 10 and the precast bridge pier to each other, and while the guard plate 10 clamps the precast bridge pier, it restricts the vertical angle between the precast bridge pier and the ground, ensuring the stable clamping and straightening of the precast bridge pier while reducing the labor intensity of workers.

[0029] A light hole 11 runs through the inside of the guard plate 10 along the length direction, and the inner wall of the light hole 11 is slidably connected to the peripheral surface of the rope 20.

[0030] The setting of the light hole 11 provides an installation space for the rope 20 to pass through the guard plate 10 on the one hand, and on the other hand, it avoids the friction generated during the sliding process of the rope 20 inside the guard plate 10 from scratching the inner wall of the guard plate 10 and the outer wall of the rope 20, and extends the service life of the guard plate 10 and the rope 20.

[0031] The turntable 30 includes a turning handle 31 and a turning rod 32. The turning handle 31 is arranged outside the guard plate 10 and is rotatably connected to the guard plate 10. One end of the turning rod 32 is fixedly connected to the side surface of the turning handle 31 close to the guard plate 10 and forms an integral structure with the turning handle 31. The other end of the turning rod 32 extends into the light hole 11 and is slidably connected to the rope 20.

[0032] The turntable 30 of the present application includes a turning handle 31 and a turning rod 32. The staff can hold the turning handle 31 and rotate the turning rod 32. The integral structure of the turning handle 31 and the turning rod 32 improves the overall structural strength of the turning handle 31, avoiding the separation or fracture of the turning handle 31 and the turning rod 32 due to the interaction between the rope 20 and the guard plate 10 and the precast pier during rotation, and preventing the occurrence of safety accidents. In addition, the turntable 30 in the present application can be provided on each guard plate 10 or on a separate guard plate 10.

[0033] A through hole 321 is formed in one end of the turning rod 32 close to the light hole 11 along the hole length direction of the light hole 11, and the inner wall of the through hole 321 is slidably connected with the rope 20. The through hole 321 is provided for the rope 20 to pass through. When the staff rotates the turning rod 32, the rope 20 is wound around the rod body of the turning rod 32 to change the constraint area of the rope 20.

[0034] The aperture of the light hole 11 is much larger than that of the through hole 321, and the aperture of the through hole 321 is larger than the diameter of the rope 20. The purpose of such a setting is to provide space for the rope 20 to wind around the turning rod 32 and avoid interfering with the turning rod 32 to contract the rope 20 due to the aperture of the through hole 321.

[0035] A limiting hole 12 is formed in the connection between the guard plate 10 and the turning handle 31 along the plate thickness direction. A limiting block 322 extends along the radial direction on the rod body of the turning rod 32, and the peripheral surface of the limiting block 322 fits with the inner wall of the limiting hole 12, which can limit the relative rotation between the turning handle 31 and the guard plate 10. After the staff rotates the turntable 30 to contract the rope 20 to complete the clamping and straightening operation of the precast pier, the limiting block 322 on the turning rod 32 is constrained in the limiting hole 12. The shape of the limiting hole 12 in the present application can be one of a triangle, a square, a convex shape, and an L shape. Correspondingly, the shape and structure of the limiting block 322 in the present application are consistent with the shape of the limiting hole 12. The shapes of the limiting hole 12 and the limiting block 322 are not limited in the present application. To highlight the advantages of the present application, a triangular structure is adopted for the limiting hole 12 and the limiting block 322. Such a setting can prevent the turning rod 32 from slipping off due to the interaction between the guard plate 10 and the precast pier when the rope 20 clamps the guard plate 10, so as to ensure the stable contact between the turning rod 32 and the guard plate 10.

[0036] The edge of the light hole 11 is rounded, and the connection between adjacent light holes 11 is connected in an arc extension. The advantage of such a setting is to avoid shearing the outer wall of the rope 20 by the edge of the light hole 11 when the rope 20 contracts, resulting in the fracture of the rope 20 and affecting the clamping and straightening operation of the rope 20 on the precast pier. The arc extension connection between adjacent light holes 11 can also ensure the stable contact between the rope 20 and the guard plate 10.

[0037] To ensure the stable support of each guard plate 10, multiple lifting members 40 are provided, and the output ends of the multiple lifting members 40 abut against the bottom end face of the guard plate 10.

[0038] The feeding rates of the output ends of the respective lifting members 40 are always at the same frequency. The feeding rates of the output ends of the lifting members 40 being at the same frequency not only avoids the circumferences of the ropes 20 being sheared from each other due to different feeding rates of the output ends of the lifting members 40 causing the guard plates 10 to be at different horizontal heights, but also enables the precast pier and the installation base 2 to always be coaxial, facilitating subsequent operations on the precast pier. The lifting member 40 in this application can be a telescopic cylinder or a jack. The staff can directly select a telescopic cylinder in the prior art to displace the guard plate 10 in the vertical direction at the bottom and middle of the precast pier to ensure that all parts of the precast pier are in the same straightness.

[0039] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other, and the key points of each embodiment are the differences from other embodiments.

[0040] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A bridge fastening structure, characterized in that, It includes a base (2), a guard plate (10), a turntable (30), a rope (20), and a lifting member (40); The base (2) is horizontally arranged on the ground, and multiple guard plates (10) are arranged above the base (2); There is a gap between adjacent guard plates (10), and the two ends of adjacent guard plates (10) along the plate length are fixedly connected to each other, forming an area capable of placing prefabricated parts (1); The turntable (30) is arranged outside the guard plate (10) and is rotatably connected to the guard plate (10), and one end of the turntable (30) extends into the plate cavity of the guard plate (10); The rope (20) is slidably arranged in the plate cavity of the guard plate (10); The rope (20) passes through one end of the turntable (30) close to the plate cavity of the guard plate (10), and can limit the size of the gap; The lifting member (40) is fixedly arranged on the tabletop of the base (2), and the output end of the lifting member (40) abuts against the bottom of the guard plate (10), and can approach or move away from the tabletop of the base (2).

2. The bridge fastening structure according to claim 1, characterized in that, A light hole (11) runs through the inside of the guard plate (10) along the length direction, and the inner wall of the light hole (11) is slidably connected to the circumferential surface of the rope (20).

3. The bridge fastening structure according to claim 2, characterized in that, The turntable (30) includes a turning handle (31) and a turning rod (32); The turning handle (31) is arranged outside the guard plate (10) and is rotatably connected to the guard plate (10); One end of the turning rod (32) is fixedly connected to the side surface of the turning handle (31) close to the guard plate (10) and forms an integral structure with the turning handle (31). The other end of the turning rod (32) extends into the light hole (11) and is slidably connected to the rope (20).

4. The bridge fastening structure according to claim 3, characterized in that, One end of the turning rod (32) close to the light hole (11) is provided with a through hole (321) running through along the hole length direction of the light hole (11), and the inner wall of the through hole (321) is slidably connected to the rope (20).

5. The bridge fastening structure according to claim 4, characterized in that, The aperture of the light hole (11) is much larger than the aperture of the through hole (321), and the aperture of the through hole (321) is larger than the diameter of the rope (20).

6. The bridge fastening structure according to claim 3, characterized in that, A limiting hole (12) is opened in the connection part of the guard plate (10) and the turning handle (31) along the plate thickness direction. A limiting block (322) extends radially on the rod body of the turning rod (32), and the circumferential surface of the limiting block (322) fits with the inner wall of the limiting hole (12), which can limit and restrain the relative rotation of the turning handle (31) and the guard plate (10).

7. The bridge fastening structure according to claim 2, characterized in that, The edge of the light hole (11) is rounded, and the connection part of adjacent light holes (11) is connected in an arc in a continuous manner.

8. The bridge fastening structure according to claim 1, characterized in that, Multiple lifting members (40) are provided, and the output ends of the multiple lifting members (40) abut against the bottom end face of the guard plate (10).

9. The bridge fastening structure according to claim 1, characterized in that, The feeding rates of the output ends of each lifting member (40) are always at the same frequency.

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