River-crossing bailey beam support and dismounting method thereof

Abstract

The present application relates to a kind of across river bailey beam support and its dismounting method, including bailey beam support and sliding beam, the bailey beam support is installed on sliding beam by connecting device, the connecting device has two, two connecting devices are symmetrically arranged at the two ends of sliding beam moving direction.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering technology, and in particular to a Bailey bridge support structure for crossing a river and its assembly / disassembly method. Background Technology

[0002] Bailey bridges are widely used in engineering construction. They are truss beams composed of Bailey bridges, with decorative windows used as connecting components and bolted together. Due to their rapid erection and high mobility, they are often used to construct simple bridges in rivers and cliffs. They are also an important support system in the construction of cast-in-place continuous box girders that cross highways and rivers.

[0003] A Bailey bridge support dismantling device, disclosed in patent CN208668283U, uses U-shaped anchor clips to fix the Bailey bridge support to a sliding beam. However, this fixing method has drawbacks. It requires ensuring that the Bailey bridge support aligns with the holes on the sliding beam after moving to a designated position before the U-shaped anchor clips can be used for fixation. Furthermore, the Bailey bridge support is quite heavy, and alignment and calibration require a significant amount of time, resulting in consistently low work efficiency. Improvements are needed in this area. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a Bailey bridge support for crossing a river and a method for its assembly and disassembly. By setting limiting plates at both ends of the Bailey bridge support, the Bailey bridge support can be stably placed on the sliding beam. The method of moving the limiting plates is very simple and convenient, and the Bailey bridge support will not move or collapse due to inertia during the movement of the sliding beam.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A Bailey bridge support for crossing a river includes a Bailey bridge support and a sliding beam. The Bailey bridge support is mounted on the sliding beam via connecting devices. There are two connecting devices, which are symmetrically arranged at both ends of the sliding beam in the direction of movement.

[0006] Furthermore, the connecting device includes a support plate, a connecting block, a limiting plate, and a connecting rod. The support plate is connected to the bottom of the Bailey beam support, and the bottom surface of the support plate contacts the top surface of the sliding beam. A fixing hole is provided on the side of the support plate, the axis of which is parallel to the horizontal plane. The fixing hole is a threaded hole. The connecting rod is a threaded rod, one end of which passes through the connecting block and is threadedly connected to the fixing hole. The connecting rod is rotatably connected to the connecting block. The limiting plate is perpendicular to the horizontal plane, and the top of the side of the limiting plate is slidably connected to the side of the connecting block away from the support plate. The bottom of the side of the limiting plate contacts the side of the sliding beam.

[0007] Furthermore, a movable groove is provided on the side of the connecting block away from the support plate. The axis of the movable groove is perpendicular to the horizontal plane. Both ends of the movable groove are closed ends. The opening size of the movable groove is smaller than the bottom size. A mating block is provided in the movable groove. The cross-sectional shape and size of the mating block are the same as the cross-sectional shape and size of the movable groove. The mating block is connected to the limiting plate.

[0008] Furthermore, a limiting rod is connected to the side of the support plate. The limiting rod is parallel to the horizontal plane. A mating hole is provided on the side of the limiting plate near the support plate. The axis of the mating hole is parallel to the axis of the limiting rod. During the dismantling of the Bailey beam support, one end of the limiting rod passes through the connecting block and mates with the mating hole.

[0009] Furthermore, a control rod is connected to the connecting rod, and the axis of the connecting rod is perpendicular to the axis of the control rod.

[0010] Furthermore, the control lever is provided with anti-slip texture.

[0011] Furthermore, the movable groove is a dovetail groove.

[0012] Furthermore, a lever is connected to the side of the limiting plate away from the connecting block.

[0013] A method for disassembling and assembling a Bailey bridge support spanning a river includes the following steps: S1: Place the Bailey beam support onto the sliding beam using a crane; S2: Rotate the connecting rod to make the limiting plate contact the sides of both ends of the sliding beam; S3: During dismantling, apply traction force to pull the sliding beam to move the Bailey beam support to the designated position; S4: Then move the limiting plate up and rotate the connecting rod so that the limiting rod on the support plate engages with the mating hole on the limiting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses limiting plates at both ends of the Bailey beam support to stably place the Bailey beam support on the sliding beam. The method of moving the limiting plates is very simple and convenient, and the Bailey beam support will not move or collapse due to inertia during the movement of the sliding beam. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partially enlarged view of serial number A in this invention; Figure 3 This is a cross-sectional view of the connecting block of the present invention; Figure 4 This is a cross-sectional view of the connecting device during the dismantling process of the present invention.

[0016] Attached diagram labels: 1-Bailey beam support, 2-sliding beam, 3-support plate, 4-connecting block, 5-mating block, 6-limiting plate, 7-connecting rod, 8-control rod, 9-lever, 10-limiting rod, 11-fixed hole, 12-moving groove, 13-mating hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0018] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] The following is combined Figures 1 to 4 The present invention will be described in detail below.

[0020] Example 1 A Bailey bridge support for crossing a river includes a Bailey bridge support 1 and a sliding beam 2. The Bailey bridge support 1 is mounted on the sliding beam 2 via connecting devices. There are two connecting devices, which are symmetrically arranged at both ends of the sliding beam 2 in the direction of movement. Each connecting device includes a support plate 3, a connecting block 4, a limiting plate 6, and a connecting rod 7. The support plate 3 is connected to the bottom of the Bailey bridge support 1, and the bottom surface of the support plate 3 contacts the top surface of the sliding beam 2. A limiting rod 10 is connected to the side of the support plate 3, and a fixing hole 11 is provided on the side of the support plate 3. The axis of the fixing hole 11 is parallel to the horizontal plane, and the fixing hole 11 is a threaded hole. The connecting rod 7 is a threaded rod, and one end of the connecting rod 7 passes through the connecting block 4 and is threadedly connected to the fixing hole 11. The connecting rod 7 is rotatably connected to the connecting block 4. A control rod 8 is connected to the connecting rod 7, and the axis of the connecting rod 7 is perpendicular to the axis of the control rod 8. Anti-slip texture is provided on the control rod 8. A movable groove 12 is provided on the side of the connecting block 4 away from the support plate 3. The movable groove 12 is a dovetail groove, and its axis is perpendicular to the horizontal plane. Both ends of the movable groove 12 are closed ends. The opening size of the movable groove 12 is smaller than the bottom size. A mating block 5 is provided in the movable groove 12. The cross-sectional shape and size of the mating block 5 are the same as those of the movable groove 12. The mating block 5 is connected to the top of the side of the limiting plate 6. The limiting plate 6 is perpendicular to the horizontal plane. The bottom of the side of the limiting plate 6 contacts the side of the sliding beam 2. A mating hole 13 is provided on the side of the limiting plate 6 near the support plate 3. During the dismantling of the Bailey beam support 1, the limiting rod passes through the connecting block 4 and engages with the mating hole 13. A lever 9 is connected on the side of the limiting plate 6 away from the connecting block 4.

[0021] A method for disassembling and assembling a Bailey bridge support spanning a river includes the following steps: S1: Place the Bailey beam support 1 onto the sliding beam 2 using a crane; S2: Rotate the connecting rod 7 to move the connecting block 4 away from the support plate 3. After the bottom of the limiting plate 6 is no longer restricted, the limiting plate 6 moves down and its side contacts the side of the support plate 3. Then rotate the connecting rod 7 to make the limiting plates 6 at both ends in close contact with the sides of the sliding beam 2. S3: During dismantling, a traction force is applied to pull the sliding beam 2 to move the Bailey beam support 1 to the designated position. The limiting plate 6 prevents the Bailey beam support 1 from moving or collapsing on the sliding beam 2 due to inertia, so that the Bailey beam support 1 can be dismantled smoothly. S4: Then move the limiting plate 6 upward and rotate the connecting rod 7 to move the connecting block 4 closer to the support plate 3. The limiting rod 10 on the support plate 3 passes through the connecting block 4 and engages with the mating hole 13 on the limiting plate 6, so that the limiting plate 6 and the support plate 3 form an integral unit when the Bailey beam support 1 is removed by crane, which facilitates the subsequent installation of the Bailey beam support 1.

[0022] The present invention uses limiting plates at both ends of the Bailey beam support to stably place the Bailey beam support on the sliding beam. The method of moving the limiting plates is very simple and convenient, and the Bailey beam support will not move or collapse due to inertia during the movement of the sliding beam.

[0023] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A Bailey bridge support for crossing a river, comprising a Bailey bridge support (1) and a sliding beam (2), characterized in that: The Bailey beam support (1) is installed on the sliding beam (2) by a connecting device. There are two connecting devices, which are symmetrically arranged at both ends of the sliding beam (2) in the direction of movement. The connecting device includes a support plate (3), a connecting block (4), a limiting plate (6), and a connecting rod (7). The support plate (3) is connected to the bottom of the Bailey beam support (1). The bottom surface of the support plate (3) is in contact with the top surface of the sliding beam (2). A fixing hole is provided on the side of the support plate (3). The axis of the fixing hole (11) is parallel to the horizontal plane. The fixing hole (11) is a threaded hole. The connecting rod (7) is a threaded rod. One end of the connecting rod (7) passes through the connecting block (4) and is threaded to the fixing hole (11). The connecting rod (7) is rotatably connected to the connecting block (4). The limiting plate (6) is perpendicular to the horizontal plane. The top of the side of the limiting plate (6) is slidably connected to the side of the connecting block (4) away from the support plate (3). The bottom of the side of the limiting plate (6) is in contact with the side of the sliding beam (2). A movable groove (12) is provided on the side of the connecting block (4) away from the support plate (3). The axis of the movable groove (12) is perpendicular to the horizontal plane. Both ends of the movable groove (12) are closed ends. The opening size of the movable groove (12) is smaller than the bottom size. A mating block (5) is provided in the movable groove (12). The cross-sectional shape and size of the mating block (5) are the same as the cross-sectional shape and size of the movable groove (12). The mating block (5) is connected to the limiting plate (6). A limiting rod (10) is connected to the side of the support plate (3). The limiting rod (10) is parallel to the horizontal plane. A mating hole (13) is provided on the side of the limiting plate (6) near the support plate (3). The axis of the mating hole (13) is parallel to the axis of the limiting rod (10). During the dismantling of the Bailey beam bracket (1), one end of the limiting rod (10) passes through the connecting block (4) and mates with the mating hole (13).

2. The Bailey bridge support for crossing a river according to claim 1, characterized in that: A control rod (8) is connected to the connecting rod (7), and the axis of the connecting rod (7) is perpendicular to the axis of the control rod (8).

3. A Bailey bridge support for crossing a river according to claim 2, characterized in that: The control lever (8) is provided with anti-slip texture.

4. A Bailey bridge support for crossing a river according to claim 1, characterized in that: The movable groove (12) is a dovetail groove.

5. A Bailey bridge support for crossing a river according to claim 1, characterized in that: A lever (9) is connected to the side of the limiting plate (6) away from the connecting block (4).

6. A method for disassembling and assembling a Bailey bridge support spanning a river, applied to the Bailey bridge support spanning a river as described in any one of claims 1-5, characterized in that: Includes the following steps: S1: The Bailey beam support (1) is placed on the sliding beam (2) by a crane; S2: Rotate the connecting rod (7) to make the limiting plate (6) contact the sides of both ends of the sliding beam (2); S3: During dismantling, apply traction force to pull the sliding beam (2) to move the Bailey beam support (1) to the designated position; S4: Then move the limiting plate (6) up and rotate the connecting rod (7) so that the limiting rod (10) on the support plate (3) engages with the mating hole (13) on the limiting plate (6).

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