Bridge support repairing and replacing device

Abstract

The utility model relates to the technical field of bridge supports, and discloses a bridge support repairing and replacing device which comprises a bridge base, an abutment base and a jack, a stand column is arranged at the top of a fixed clamping plate, an adjusting bolt is arranged at the top end of the stand column, a movable clamping plate is arranged on the outer side of the adjusting bolt, and a bearing support is arranged on one side of the stand column. Supporting ejector rods are arranged on the two sides of the top of the bearing support, a limiting plate is arranged at one end of each supporting ejector rod, a long screw rod is arranged in the middle of the limiting plate, a front clamping plate is arranged at one end of the long screw rod, clamping bolts are arranged on the two sides of the front clamping plate, and a rear clamping plate is arranged at one end of each clamping bolt. The long screw rotates to drive the front clamping plate to move towards the side close to the limiting plate, and along with rotation of the long screw, the old support between the front clamping plate and the rear clamping plate is driven to be gradually separated from the position between the bridge base and the pier base till the old support moves to the position above the supporting ejector rod, and personnel can lift away the old support conveniently through a crane.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge support technical field, concretely is a bridge support repair and replacement device. BACKGROUND

[0002] The bridge support is erected on the pier and is a device for supporting the upper structure of the bridge. Its function is to fix the upper structure on the pier, bear various forces acting on the upper structure, and reliably transmit it to the pier. In order to add a new bridge support or replace a diseased bridge support, the bridge support replacement technology emerges as the times require.

[0003] The existing Chinese patent (CN114855645A) discloses a bridge support replacement device and method. The bridge support replacement device includes a synchronous hydraulic jacking device and a displacement monitoring device. The synchronous hydraulic jacking device includes a hydraulic control system and several jacks. The piston top of the jack has an arc-shaped groove structure. An arc-shaped protruding structure is rotatably connected in the arc-shaped groove structure. The arc-shaped protruding structure is used to support the bridge bottom. Two steel backing plates are clamped between the arc-shaped protruding structure and the bridge bottom. A Teflon sliding plate is clamped between the two steel backing plates. The piston of the jack is mechanically self-locked by a threaded self-locking flange. The displacement monitoring device is used to monitor the elevation change before and after the bridge support replacement. When repairing and replacing the bridge support, the top of the jack can slide appropriately, adapting to and improving the stress condition of the bridge in use.

[0004] When the existing bridge support is replaced using the jacking method, the jack is often used to lift the bridge, and then the old support is removed and the new support is installed. However, during the removal of the old support, there is often a rusting problem between the old support and the bridge or pier, making it difficult to separate the old support from the bridge and pier, which affects the lifting of the old support. SUMMARY

[0005] The purpose of the utility model is to provide a bridge support repair and replacement device to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a bridge support repair and replacement device, comprising: a bridge seat, a pier seat, and a jack. The bridge seat and the pier seat are provided with a jack between them. The bottom of the bridge seat is provided with a fixed clamping plate on both sides. The fixed clamping plate is provided with a stand on the top. The stand is provided with an adjusting bolt at the top end. The adjusting bolt is provided with a movable clamping plate on the outside. The stand is provided with a receiving bracket on one side. The receiving bracket is provided with a supporting top rod on both sides at the top. The supporting top rod is provided with a limiting plate at one end. The limiting plate is provided with a long screw in the middle. The long screw is provided with a front clamping plate at one end. The front clamping plate is provided with a clamping bolt on both sides. The clamping bolt is provided with a rear clamping plate at one end.

[0007] Further, the bridge seat and pier seat are provided with old support, and the front clamping plate and the rear clamping plate are located on the front and rear sides of the old support respectively.

[0008] Further, one side of the column is attached to the outer wall of the bridge seat, and the top of the column is fixedly connected with one end of the screw rod of the adjusting bolt.

[0009] Further, the bottom surface of the movable clamping plate is abutted with the top surface of the bridge seat, and the top surface of the supporting top rod is flush with the top surface of the bridge seat.

[0010] Further, the triangular reinforcing plates are arranged between the two sides of the receiving support and the column.

[0011] Further, the middle part of the limiting plate is provided with a threaded hole matched with the long screw rod, and one end of the long screw rod is rotatably connected with the front clamping plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The fixing clamping plate, the receiving support and the long screw rod are arranged, when the bridge support repairing and replacing device is used to replace the old support, the bridge is first lifted by the jack, then the connecting piece between the old support, the bridge seat and the pier seat is removed, then the whole device is fixed on one side of the bridge seat through the cooperation of the fixing clamping plate and the movable clamping plate, the front clamping plate and the rear clamping plate are used to clamp and fix on the front and rear sides of the old support, then the long screw rod is rotated to drive the front clamping plate to move towards the side close to the limiting plate, with the rotation of the long screw rod, the old support between the front clamping plate and the rear clamping plate is gradually separated from the bridge seat and the pier seat, until the old support is moved above the supporting top rod, and then the old support can be lifted away by the crane.

[0014] The parts not involved in the device are the same as or can be realized by the prior art. DRAWINGS

[0015] Figure 1 It is a perspective view of the bridge support repairing and replacing device.

[0016] Figure 2 It is another perspective view of the bridge support repairing and replacing device from another angle.

[0017] Figure 3 It is a front view of the bridge support repairing and replacing device.

[0018] Figure 4 It is a left view of the bridge support repairing and replacing device.

[0019] In the figure: 1, bridge seat; 2, pier seat; 3, old support; 4, jack; 5, fixed clamping plate; 6, stand; 7, adjusting bolt; 8, movable clamping plate; 9, receiving support; 10, supporting top rod; 11, limiting plate; 12, long screw rod; 13, front clamping plate; 14, rear clamping plate; 15, clamping bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of bridge support repair and replacement device, comprising: bridge seat 1, pier seat 2 and jack 4, bridge seat 1 and pier seat 2 between being equipped with jack 4, jack 4 is used to lift the main tool of bridge, it can lift bridge seat to certain height, to remove and replace old support 3, bridge seat 1 bottom both sides are equipped with fixed clamping plate 5, fixed clamping plate 5 top is equipped with stand 6, stand 6 top end is equipped with adjusting bolt 7, adjusting bolt 7 outside is equipped with movable clamping plate 8, by the cooperation of fixed clamping plate 5 and movable clamping plate 8, entire device is fixed in bridge seat 1 side.

[0022] Stand 6 side is equipped with receiving support 9, receiving support is used to support the old support being removed, prevent it from falling or damaging before being lifted, receiving support 9 top both sides are equipped with supporting top rod 10, supporting top rod is the extension of receiving support, it supports the old support being removed, supporting top rod 10 one end is equipped with limiting plate 11, limiting plate 11 is used to limit the position of old support 3 during movement on one hand, on one hand support long screw rod 12 rotation, limiting plate 11 middle part is equipped with long screw rod 12, long screw rod is the main component of driving front clamping plate movement, by rotating long screw rod can drive front clamping plate to move to the side close to limiting plate, long screw rod 12 one end is equipped with front clamping plate 13, front clamping plate 13 both sides are equipped with clamping bolt 15, clamping bolt 15 one end is equipped with rear clamping plate 14. Front clamping plate 13 cooperates with rear clamping plate 14, and the old support is clamped together, to prevent it from moving or falling before being lifted.

[0023] Bridge seat 1 and pier seat 2 between being equipped with old support 3, front clamping plate 13 and rear clamping plate 14 are located at the front and rear of old support 3 respectively. Old support is the connecting component between bridge and pier seat, it plays the role of buffering and shock absorption, protects bridge from the influence of external impact and vibration. After long time use, old support can lose effectiveness due to wear or aging, and needs to be replaced to ensure the safe operation of bridge.

[0024] The side of the column 6 is in close contact with the outer wall of the bridge seat 1, and the top of the column 6 is fixedly connected with the screw rod of the adjusting bolt 7. The side of the column 6 is in close contact with the outer wall of the bridge seat 1. This design not only enhances the stability of the device, but also ensures that the column 6 can be accurately positioned on the bridge seat, providing an accurate support point for subsequent clamping and replacement work.

[0025] The bottom surface of the movable clamping plate 8 is in abutment with the top surface of the bridge seat 1, and the top surface of the support top rod 10 is flush with the top surface of the bridge seat 1. The bottom surface of the movable clamping plate 8 is designed to be in abutment with the top surface of the bridge seat 1. This design ensures that the movable clamping plate 8 can provide stable support when clamping the bridge seat, and prevents sliding or moving during the replacement of the support. The top surface of the support top rod 10 is designed to be flush with the top surface of the bridge seat 1. This design has two main purposes: first, it ensures that after the old support is removed, the support top rod 10 can provide a stable support surface to prevent the old support from tilting or falling before being lifted away; second, the flush top surface helps operators more easily access and operate the device, improving work efficiency and safety.

[0026] The triangular reinforcing plate is provided between the two sides of the receiving bracket 9 and the column 6. The main purpose of this design is to enhance the overall structural strength of the device, especially when subjected to large loads or lateral forces, the triangular reinforcing plate can effectively disperse and resist these forces, thereby maintaining the stability of the device.

[0027] The middle part of the limiting plate 11 is provided with a threaded hole matched with the long screw rod 12. This design allows the long screw rod 12 to be tightly connected with the limiting plate 11 through threaded connection, thereby realizing the movement and clamping function of the front clamping plate 13. The design of the threaded hole ensures that the long screw rod 12 can stably transmit torque when rotating, and accurately control the position of the front clamping plate 13. The long screw rod 12 is rotatably connected with the front clamping plate 13. This allows the long screw rod 12 to move the front clamping plate 13 when rotating, without generating additional bending moment or torque on the front clamping plate 13.

[0028] When the bridge support repair and replacement device is replacing the old support 3, first use the jack 4 to lift the bridge, then remove the connecting piece between the old support 3 and the bridge seat 1 and the pier seat 2, then fix the entire device on one side of the bridge seat 1 through the cooperation of the fixed clamping plate 5 and the movable clamping plate 8, clamp and fix the old support 3 on both sides of the front clamping plate 13 and the rear clamping plate 14, then rotate the long screw rod 12 to move the front clamping plate 13 towards the limiting plate 11, as the long screw rod 12 rotates, the old support 3 between the front clamping plate 13 and the rear clamping plate 14 gradually separates from the bridge seat 1 and the pier seat 2, until the old support 3 moves above the support top rod 10, facilitating personnel to lift the old support 3 away through the crane.

[0029] Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the range of the utility model protection.

Claims

1. A bridge bearing repair and replacement device, comprising: The utility model provides bridge seat (1), pier seat (2) and jack (4), its characterized in be equipped with jack (4) between bridge seat (1) and pier seat (2), both sides of bridge seat (1) bottom are equipped with fixed clamping plate (5), the top of fixed clamping plate (5) is equipped with stand (6), the top of stand (6) is equipped with adjusting bolt (7), the outside of adjusting bolt (7) is equipped with movable clamping plate (8), one side of stand (6) is equipped with bearing support (9), both sides of bearing support (9) top are equipped with support top rod (10), one end of support top rod (10) is equipped with limit plate (11), the middle part of limit plate (11) is equipped with long screw rod (12), one end of long screw rod (12) is equipped with front clamping plate (13), both sides of front clamping plate (13) are equipped with clamping bolt (15), one end of clamping bolt (15) is equipped with rear clamping plate (14).

2. The bridge bearing repair and replacement device of claim 1, wherein: Old support (3) is arranged between bridge seat (1) and pier seat (2), and the front clamping plate (13) and the rear clamping plate (14) are located at the front and rear sides of the old support (3) respectively.

3. The bridge bearing repair and replacement device of claim 1, wherein: The stand (6) is attached to the outer wall of the bridge seat (1) on one side, and the top of the stand (6) is fixedly connected with one end of the screw rod of the adjusting bolt (7).

4. The bridge bearing repair and replacement device of claim 1, wherein: The bottom surface of the movable clamping plate (8) abuts against the top surface of the bridge seat (1), and the top surface of the support top rod (10) is flush with the top surface of the bridge seat (1).

5. The bridge bearing repair and replacement device of claim 1, wherein: The bearing support (9) is provided with a triangular reinforcing plate between the two sides and the stand (6).

6. The bridge bearing repair and replacement device of claim 1, wherein: The middle part of the limit plate (11) is provided with a threaded hole matched with the long screw rod (12), and one end of the long screw rod (12) is rotatably connected with the front clamping plate (13).

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